WO2016086748A1 - 多功能肌肉锻炼器 - Google Patents

多功能肌肉锻炼器 Download PDF

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Publication number
WO2016086748A1
WO2016086748A1 PCT/CN2015/093766 CN2015093766W WO2016086748A1 WO 2016086748 A1 WO2016086748 A1 WO 2016086748A1 CN 2015093766 W CN2015093766 W CN 2015093766W WO 2016086748 A1 WO2016086748 A1 WO 2016086748A1
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WO
WIPO (PCT)
Prior art keywords
handles
spring
spline
handle
muscle exerciser
Prior art date
Application number
PCT/CN2015/093766
Other languages
English (en)
French (fr)
Inventor
施强
Original Assignee
施强
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 施强 filed Critical 施强
Publication of WO2016086748A1 publication Critical patent/WO2016086748A1/zh
Priority to US15/594,571 priority Critical patent/US10173093B2/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/023—Wound springs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/026—Bars; Tubes; Leaf springs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/045—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters having torsion or bending or flexion element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4027—Specific exercise interfaces
    • A63B21/4033—Handles, pedals, bars or platforms
    • A63B21/4035—Handles, pedals, bars or platforms for operation by hand
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4041—Interfaces with the user related to strength training; Details thereof characterised by the movements of the interface
    • A63B21/4047—Pivoting movement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/02—Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles)
    • A63B23/0233—Muscles of the back, e.g. by an extension of the body against a resistance, reverse crunch
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/03516—For both arms together or both legs together; Aspects related to the co-ordination between right and left side limbs of a user
    • A63B23/03533—With separate means driven by each limb, i.e. performing different movements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A63B23/1209—Involving a bending of elbow and shoulder joints simultaneously
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0072—Limiting the applied force, torque, movement or speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions

Definitions

  • the present invention relates to a fitness apparatus, and more particularly to a multifunctional muscle exerciser mainly for exercising an arm, chest and shoulder muscles.
  • the Chinese utility model patent CN203663337U discloses a multifunctional arm force device which can be used as an arm force for exercising arm strength and as a tension device for exercising chest muscles.
  • the utility model comprises a handle and a first spring, wherein a sleeve with an external thread is respectively fixed on both ends of the first spring, and the handles arranged on the left and right are respectively detachably arranged by the thread on the first spring for receiving the bending moment
  • the two ends of the two ends form an arm force
  • a plurality of first connecting rings with an annular structure and a snap structure are respectively arranged on the two handles in the longitudinal direction, and the first spring is removed from the two grips, and the empty sleeve is taken out.
  • the Chinese utility model patent CN203220727U discloses a multi-functional arm device, which comprises a middle section spring, two side handles and a protective rope sleeve, and a spiral angular angle spring is connected at the top end of the handles on both sides, the spiral opening angle
  • the other end of the spring is connected with a grip handle, which can be used to exercise the arm force as well as the grip of one end handle, spring and handle.
  • the patent provides a protective sling for improved safety, other deficiencies caused by the coil spring are still not overcome.
  • the force of the arm is also inconvenient to use by adding a grip to the handle.
  • the technical problem to be solved by the present invention is to provide a multifunctional muscle exerciser with small volume, large torque and good safety.
  • a multifunctional muscle exerciser comprising two handles, each of which has a connecting end and a holding end, and the connecting ends of the two handles are connected
  • a torsion spring is composed of a plurality of stacked spring steel sheets, and the two ends of the plurality of spring steel sheets are respectively connected by fasteners.
  • the handle is molded from an engineering plastic.
  • the connecting ends of the two handles are provided with notches, and the ends of the spring steel sheets are clamped in the notches, and are fixedly connected to the connecting ends of the two handles by fasteners.
  • the handle is composed of a pipe having an inner hole, and each of the inner holes of the two handles is fixed with a spring fixing seat, and the notch is disposed on the spring fixing seat.
  • the two handles are U-shaped, the connecting ends of the two handles are coaxially arranged, and the grip ends of the two handles are arranged side by side.
  • one end of the torsion spring is fixedly connected with the connecting end of one of the handles, the other end is fixedly connected with a spring clamping seat, and the connecting end of the other handle is fixedly provided with a spline sleeve, and the spring clamps
  • the seat is provided with a spline shaft, and the spline shaft cooperates with the spline sleeve.
  • the present invention has the following beneficial effects:
  • the invention adopts a torsion spring composed of a plurality of spring steel sheets, which has the advantages of small size, light weight and convenient fixing at both ends.
  • the torsion spring has a large elastic force.
  • Two U-shaped handles are used. As long as the angle between the two handles is reasonably set or the distance between the grip ends of the two handles is reasonably set, it can be clamped or stretched. The angle between the two handles can be reduced to make a tensioner, and the angle between the two handles can be increased as a "pressure" or a grip.
  • the structure with the spline shaft and the spline sleeve is matched, so that the angle between the two handles can be adjusted, which can not only realize the function of the multifunctional muscle exerciser and the gripper, but also can easily adjust the torque.
  • the size of the exercise thus achieves a variety of exercise forms for exercising different muscle groups.
  • the entire device is light in weight, comfortable and safe to use; foldable, easy to carry.
  • Embodiment 1 is a schematic view showing the structure of Embodiment 1 of the multifunctional muscle exerciser of the present invention.
  • Figure 2 is a schematic view showing the structure of a torsion spring in the present invention.
  • Figure 3 is a schematic view showing the structure of a spring mount in the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 1.
  • Fig. 5 is a schematic view showing the structure of a second embodiment of the multifunctional muscle exerciser of the present invention.
  • Fig. 6 is a perspective view showing the structure of the multifunctional muscle exerciser of the present invention.
  • Figure 7 is a schematic illustration of a torsion spring assembly used in embodiment 3 of the multifunctional muscle exerciser of the present invention.
  • Fig. 8 is a schematic structural view of Embodiment 3 of the multifunctional muscle exerciser of the present invention.
  • Fig. 9 is a perspective view showing the structure of a multifunction muscle exerciser according to a third embodiment of the present invention.
  • Figure 10 is a schematic illustration of an angle formed by two handles of the multifunctional muscle exerciser of the present invention.
  • Figure 11 is a schematic illustration of another angle formed by the two handles of the multifunctional muscle exerciser of the present invention.
  • Figure 12 is a partial enlarged view of the portion B in Figure 8.
  • Figure 13 is a perspective view showing the structure of the multifunctional muscle exerciser of the present invention.
  • Figure 14 is a partial enlarged view of a portion C in Figure 13 .
  • Figure 15 is a schematic illustration of an outer ring gear used in Example 4 of the multifunctional muscle exerciser of the present invention.
  • Figure 16 is a schematic illustration of an internal ring gear used in Example 4 of the multifunctional muscle exerciser of the present invention.
  • Fig. 17 is a view showing a relative positional relationship between the ring gear and the outer ring gear in the circumferential direction in the fourth embodiment of the present invention.
  • Fig. 18 is a view showing another relative positional relationship of the ring gear and the outer ring gear in the circumferential direction in the fourth embodiment of the present invention.
  • Fig. 19a shows the first relative positional relationship of the ring gear and the outer ring gear in the axial direction in the embodiment 4 of the present invention.
  • Fig. 19b shows a second relative positional relationship of the ring gear and the outer ring gear in the axial direction in the embodiment 4 of the present invention.
  • Fig. 19c shows a third relative positional relationship of the ring gear and the outer ring gear in the axial direction in the embodiment 4 of the present invention.
  • Embodiment 4 of the multifunctional muscle exerciser of the present invention is another perspective structural view of Embodiment 4 of the multifunctional muscle exerciser of the present invention.
  • Figure 21 is a schematic view showing the structure of the embodiment 5 of the multifunctional muscle exerciser of the present invention.
  • Figure 22 is a perspective view showing the fifth embodiment of the multifunctional muscle exerciser of the present invention.
  • Figure 23 is a schematic view showing the structure of a sixth embodiment of the multifunctional muscle exerciser of the present invention.
  • Figure 24 is a perspective view showing the sixth embodiment of the multifunctional muscle exerciser of the present invention.
  • Figure 25 is a schematic view showing the structure of the embodiment 7 of the multifunctional muscle exerciser of the present invention.
  • Figure 26 is a schematic view showing a combined state of a torsion spring and a spring holder.
  • Figure 27 is a perspective view showing the structure of the spring holder.
  • Figure 28 is a perspective view showing the eighth embodiment of the multifunctional muscle exerciser of the present invention.
  • Figure 29 is a partial enlarged view of the portion D in Figure 28.
  • Figure 30 is a cross-sectional view showing the structure of Embodiment 8 of the multifunctional muscle exerciser of the present invention.
  • Figure 31 is a partial enlarged view of the portion E in Figure 30.
  • Figure 32 is a schematic illustration of an outer ring gear used in the embodiment 8 of the multifunctional muscle exerciser of the present invention.
  • Figure 33 is a schematic illustration of an internal ring gear used in Example 8 of the multifunctional muscle exerciser of the present invention.
  • Figure 34 is a view showing a relative positional relationship between the ring gear and the outer ring gear in the circumferential direction in the eighth embodiment of the present invention.
  • Fig. 35 is a view showing another relative positional relationship of the ring gear and the outer ring gear in the circumferential direction in the eighth embodiment of the present invention.
  • a multifunctional muscle exerciser includes two left and right handles 1, 2, and the two handles 1 and 2 each include a connecting end 1a, 2a and a holding end 1b, 2b.
  • the handles 1, 2 in the embodiment are made of a metal tube having an inner hole, such as a steel tube or an aluminum alloy tube.
  • a torsion spring 3 is connected between the connecting ends 1a, 2a of the two handles, and the torsion spring 3 can provide a torsional resistance when the grip ends 1b, 2b of the two handles are respectively held by both hands and rotated in opposite directions. So that you can exercise the torsion of your arms.
  • the torsion spring 3 of the present invention is formed by stacking a plurality of spring steel sheets 31 up and down.
  • the spring steel sheets 31 are provided with through holes 3a at both ends thereof, which can be tightly tightened by rivets or bolts.
  • the firmware connects them together.
  • a spring fixing seat 32 is disposed at each end of the torsion spring 3, and the spring fixing seat 32 is opened.
  • the notch 32a and the through hole 32b perpendicular to the notch when the end of the spring steel piece is clamped in the notch 32a, the rivet or bolt can be passed through the through hole 32b and the through hole of the end of the spring steel piece 3a, thereby fixing the spring steel piece to the spring mount 32.
  • the spring holder 32 is fixedly coupled to the connecting ends 1a, 2a of the handle, thereby connecting the torsion spring 3 between the connecting ends 1a, 2a of the two handles.
  • the spring fixing seat 32 can be fixed in the handle by rivets or screws passing through the fixing holes 32d of the spring fixing base 32. Of course, it can also be fixed by other known methods such as welding and bonding.
  • the handles 1, 2 are each formed by a circular tube, and the spring fixing base 32 is also cylindrical and located in the inner hole of the handle.
  • Two ribs 1c are disposed on the inner wall of the circular tube, and the cylindrical surface of the spring fixing base 32 is provided with a groove 32c that cooperates with the rib 1c.
  • the end faces of the connecting ends 1a, 2a of the two handles are close together, leaving only a small gap in the middle, so that the torsion spring 3 is integrally received in the inner holes of the two handles, and the torsion springs 3 are separated from the ends.
  • the rest of the parts are unconstrained, and the torsional deformation can be freely generated.
  • the sleeve 4 is further sleeved on the outside of the connecting ends 1a, 2a of the two handles, and the sleeve 4 can function as a gap between the handle connecting ends 1a, 2a and protect the torsion spring 3, so that The multifunctional muscle exerciser of the present invention is safer to use.
  • the sleeve 4 can be fixed to the connection end of one of the handles on. Further, a liner 5 is further disposed between the inner wall of the sleeve 4 and the outer wall of the connecting end of the handle, and the liner 5 is made of a material with a low coefficient of friction and can be fixed on the inner wall of the sleeve 4 or the outer wall of the connecting end of the handle. The liner 5 prevents the inner wall of the sleeve 4 from coming into direct contact with the outer wall of the joint end of the handle, thereby reducing friction.
  • the two handles 1 and 2 are both U-shaped, and the connecting ends 1a and 2a of the two handles are coaxially disposed, and the grip ends of the two handles are disposed.
  • 1b, 2b are arranged side by side, that is, from the front, as shown in Fig. 5, the grip ends 1b, 2b of the two handles have a length that overlaps, but are separated by a certain distance in the free state. Viewed from the side, as shown in Fig. 10, an angle is formed between the two handles 1, 2.
  • the structure of the torsion spring 3 in this embodiment, and the connection relationship between the torsion spring 3 and the two handles are the same as in the first embodiment.
  • Other structures such as the sleeve 4 and the liner 5 can also be arranged in the same manner as in the first embodiment.
  • the lengths of the two handles 1, 2 are substantially equal. Since the grip ends 1b, 2b of the two handles are arranged side by side, after being held by both hands, the holding ends 1b, 2b of the two handles are pushed and pulled. The distance is further increased or decreased, or the angle between the two handles 1, 2 is changed by manpower, so that the torsion spring 3 generates an elastic force to achieve the purpose of exercising the two arms to push and pull.
  • the present embodiment also uses two U-shaped handles and a laminated torsion spring.
  • the two handles are also bent by a circular tube, but in this embodiment, The connection of the torsion spring to the two handles is not the same as in the second embodiment.
  • one end of the torsion spring 3 is fixed with a spring fixing seat 32, and the spring fixing seat 32 is the same as that in the above two embodiments; the other end of the torsion spring 3 is fixed with a spring clamping seat 33, Like the spring holder 32, the spring holder 33 is also provided with a notch 33a, one end of which is clamped in the notch 33a, and is fixed to the spring by a fastener such as a rivet or a bolt. On the clamping seat 33.
  • the spring retaining seat 33 is further provided with a spline shaft 33b, and the spline shaft 33b is provided with external spline teeth.
  • the spring fixing seat 32 is fixed in the left handle 1, and the connecting end 2a of the right handle 2 is provided with a spline sleeve 34.
  • the spline sleeve 34 is provided with internal spline teeth, and the spring is provided.
  • the spline shaft 33b on the holder can be inserted into the spline sleeve 34 and engaged with the spline sleeve 34 by a spline (this state is hereinafter referred to as two handles in a closed state), using a multifunctional muscle exerciser In the process, the spline fit serves to transmit torque.
  • Two handles can also be placed on the inner wall The rail rib (refer to 1c in FIG.
  • the torsion spring 3 can be driven to move outward together with the spring holder 33 at the end thereof.
  • the spline shaft 33b is disengaged from the spline sleeve 34 (this state is hereinafter referred to as the two handles in an open state), so that the left handle 1 is free to rotate relative to the right handle 2. If the left handle 1 is rotated by an angle with respect to the right handle 2, and then the spline shaft 33b is reinserted into the spline sleeve 34, the initial distance between the two handle grip ends 1b, 2b can be conveniently adjusted. Or to adjust the initial (in the free state) angle of the two handles 1, 2, such as from a smaller angle ⁇ shown in FIG. 10 to a larger angle ⁇ shown in FIG. Or adjust from a larger angle ⁇ to a smaller angle ⁇ .
  • the multifunctional muscle exerciser in this embodiment can adjust the magnitude of the torque relatively conveniently.
  • the grip of the two handles can be simultaneously held by one hand.
  • the end 1b, 2b therefore, the multi-functional muscle exerciser in this embodiment can also be used as a grip, thereby having various functions.
  • a guide shaft 33c is further extended forward from the end of the spline shaft 33b, and the diameter of the guide shaft 33c is smaller than the diameter of the root circle of the spline shaft 33b.
  • the spline sleeve 34 is provided with a guiding hole in which the guiding shaft 33c is matched.
  • an insertion positioning mechanism disposed between the guide shaft 33c and the handle is further provided, and one or more annular grooves 33d are provided on the cylindrical surface of the guide shaft 33c.
  • a top bead 34b is arranged in the radial direction, and the top bead 34b is in contact with the spring 34a. Under the action of the spring 34a, a part of the spherical surface of the top bead 34b can be guided from the guiding hole.
  • the inner wall is protruding.
  • the top bead 34b is slidable along the cylindrical surface of the guide shaft 33c; and when the spline shaft 33b is fully engaged with the spline sleeve 34, that is, when the external spline teeth and the spline sleeve 34 on the spline shaft 33b
  • the top bead 34b just snaps into the annular groove 33d to achieve positioning, that is, the annular groove 33d and the top bead 34b constitute an insertion positioning mechanism.
  • the user can know whether the top bead 34b is caught in the annular groove 33d by the hand feeling, thereby judging whether the spline shaft 33b and the spline sleeve 34 are completely matched, and avoiding the use of the multifunctional muscle exercise when the spline shaft 33b is partially engaged with the spline sleeve 34.
  • the spline shaft 33b or the spline sleeve 34 is damaged.
  • the sleeves 4 may be disposed on the outer sides of the connecting ends 1a and 2a of the two handles, and one end of the sleeve 4 is fixed on the connecting end of one of the handles, and the sleeve 4 is A liner 5 may also be provided between the inner wall and the outer wall of the other handle connection end.
  • the sleeve 4 and the liner 5 also each have the function described in Embodiment 1, while the sleeve 4 and the liner 5 in this embodiment are also used to constitute a stop mechanism between the two handles.
  • the limiting mechanism is used to prevent the connecting ends 1a, 2a of the two handles from continuing to separate, thereby avoiding The two handles are completely separated during use, ensuring the integrity and safety of the multifunctional muscle exerciser of the present invention.
  • the liner 5 is fixed on the connecting end 2a of the right handle 2, the outer diameter of the liner 5 is larger than the outer diameter of the right handle connecting end 2a; and the left end of the sleeve 4 is fixed to the connecting end 1a of the left handle.
  • the right end of the sleeve 4 extends to the outside of the connecting end 2a of the right handle 2.
  • the right end of the sleeve 4 is fixed with a retaining ring 41.
  • the inner diameter of the retaining ring 41 is smaller than the outer diameter of the liner 5, and the connecting ends of the two handles.
  • the spline shaft 33b is completely separated from the spline sleeve 34.
  • the right end surface of the liner 5 is in contact with the retaining ring 41, so that the connecting ends of the two handles cannot be separated again, that is, the liner 5 constitutes a convex portion.
  • the starting portion, whereby the liner 5 and the retaining ring 41 at the end of the sleeve 4 constitute the stop mechanism.
  • Embodiment 3 is an improvement of Embodiment 3, which may include all of the structures described above in Embodiment 3.
  • the embodiment adds an angle limiting mechanism between the two handles, and the angle limiting mechanism functions to set the angle between the two handles in a free state (for example, 30 ⁇ ). 150 degrees), when the two handles are squeezed in the left and right direction, they can be changed from the open state to the closed state, that is, the state in which the spline shaft 33b is engaged with the spline sleeve 34 (see FIG.
  • the initial angle between the two handles of the multifunctional muscle exerciser is adjustable.
  • the torsion spring may be greatly deformed and generated during the use of the multifunctional muscle exerciser.
  • a large amount of elasticity which may cause difficulty in gripping and slipping, or damage to the torsion spring or other components, thereby posing a hazard to the user. Therefore, this The embodiment provides an angle limiting mechanism to better ensure the safety of the multifunctional muscle exerciser and the user.
  • the angle limiting mechanism is composed of an outer ring gear and an inner ring gear.
  • the outer ring gear and the inner ring gear are provided with cooperating convex teeth and tooth grooves, and the convex teeth include at least one special convex tooth. At least one special tooth groove is included, which can be inserted into other slots other than the particular tooth groove.
  • the sleeve 4 is fixed to the right handle 2, the left end of the sleeve 4 is fixed with an inner ring gear 7, and the left handle 1 is fixed with an outer ring gear 6, and the outer ring gear 6 is along the outer circumference.
  • a plurality of convex teeth 61 are uniformly disposed, and as shown in FIG. 15, these convex teeth include at least one special convex tooth 61a.
  • the inner ring gear 7 is uniformly provided with a plurality of slots 71 along the inner circumference, and these slots include at least one special slot 71a which can be inserted in addition to the special slot 71a. In other external slots.
  • the ring gear 7 may be integrally formed as a part of the sleeve 4 at the left end of the sleeve 4, or may be fixed as a separate member to the left end of the sleeve 4, in Embodiment 3.
  • the mentioned baffle 41 can also be formed inside the ring gear 7.
  • Fig. 15-18 there are 12 convex teeth and two tooth grooves, wherein two special convex teeth 61a are provided adjacent to each other; and two special tooth grooves 71a are also disposed adjacent to each other.
  • the number of the teeth and the slots is not limited to twelve, and the particular teeth 61a and the special slots 71a are not limited to two.
  • the width of all the convex teeth is the same, but the height of the special convex teeth 61a is higher than the height of the other convex teeth; the width of all the tooth grooves (including the special tooth grooves) is also the same, and both It is larger than the width of the convex teeth, and there is a certain amount of enthalpy on both sides when mating, so as to ensure that the spline shaft 33b can smoothly and the spline sleeve in the free state of the torsion spring 3 when the outer ring gear 6 and the inner ring gear 7 are engaged. 34 meshing.
  • the depth of the special tooth groove 71a is shallower than the depth of the other tooth grooves. In particular, the depth of the tooth groove 71a makes the special convex tooth 61a unable to pass, but other convex teeth can be allowed to pass smoothly.
  • the spline shaft 33b cannot be inserted into the spline sleeve 34, so that the two handles cannot be closed, and the multifunctional muscle exerciser does not work normally. Therefore, as long as the positions of the special convex teeth 61a and the special tooth grooves 71a are appropriately set such that the angles of the two handles in the free state exceed a certain preset value, the special convex teeth 61a and the special tooth grooves 71a are circumferentially The position of the coincidence can be achieved by limiting the angle of the handle.
  • the spline shaft 33b and the spline sleeve 34 initially only have a part of the length to start to cooperate, if there is no restriction, at this time Applying torque to the two handles is likely to cause damage to the spline shaft 33b or the spline sleeve 34.
  • the relative positions of the outer ring gear 6 and the ring gear 7 in the axial direction may be set in such a manner that when the spline shaft 33b is completely disengaged from the spline sleeve 34, the outer ring gear 6 And the ring gear 7 is also in a disengaged state (as shown in Fig. 19a); when the outer ring gear 6 starts to enter the inner ring gear 7 (as shown in Fig. 19b), the convex teeth 61 start to be inserted into the slots 71. Then, the spline shaft 33b and the spline sleeve 34 are partially engaged with each other.
  • the angle limiting mechanism has a function of limiting the handle angle and also has a protective flower.
  • FIG. 20 Another arrangement of the angle limiting mechanism is shown in Fig. 20.
  • the sleeve 4 is still fixed to the right handle 2, but the positions of the outer ring gear 6 and the inner ring gear 7 are interchanged, that is, the outer ring gear 6 is fixed at The left end of the sleeve 4, and the inner ring gear 7 is fixed on the left handle 1, the convex teeth on the outer ring gear 6 and the tooth grooves on the inner ring gear 7 are still disposed at the same time, which can also realize the angle limiting mechanism.
  • this has the advantage that the outer diameter of the ring gear 7 can be reduced, thereby reducing the volume of the entire multifunctional muscle exerciser.
  • the multifunctional muscle exerciser in this embodiment includes two left and right handles 1, 2, and the two handles 1, 2 each include a connecting end 1a, 2a and a holding end 1b, 2b, a torsion spring 3 is connected between the connection ends 1a, 2a of the two handles, and the structure of the torsion spring 3 is the same as that of the first embodiment.
  • the two handles 1 and 2 in the embodiment are made of engineering plastics, and can be formed directly on the connecting ends 1a, 2a of the two handles by means of molding.
  • the notch 32a of the torsion spring 3 is held, and therefore, it is not necessary to provide a separate spring mount in this embodiment. Both ends of the torsion spring 3 held in the notch 32a can also be fixed to the two handles by rivets or screws.
  • the shapes of the two handles 1, 2 are the same as those of the embodiment 2, and are both U-shaped, but the two handles 1, 2 are molded by engineering plastics. Direct molding.
  • the structure of the torsion spring 3 in this embodiment, The connection relationship between the torsion spring 3 and the two handles is the same as that of the fifth embodiment.
  • the present embodiment also employs two U-shaped handles and a laminated torsion spring, and the two handles are also directly molded by engineering plastics by molding.
  • the connection manner of the torsion spring and the two handles in this embodiment is different from that of the embodiment 6.
  • one end of the torsion spring 3 is directly fixed in the connecting end 1a of the left handle; the other end of the torsion spring 3 is fixed to a spring retaining seat 33, and the spring retaining seat 33 is provided with a notch 33a (see Fig. 27).
  • the other end of the torsion spring 3 is clamped in the notch 33a, and is fixed to the spring holder 33 by a fastener such as a rivet or a bolt.
  • the spring holder 33 has the same structure as that of the embodiment 3, and is provided with a spline shaft 33b, and the spline shaft 33b is provided with external spline teeth.
  • a guide shaft 33c is further extended forward from the end of the spline shaft 33b, and the diameter of the guide shaft 33c is smaller than the diameter of the root circle of the spline shaft 33b. The action of the guide shaft 33c is the same as that of the third embodiment.
  • a spline sleeve 34 is provided in the connecting end 2a of the right handle 2, and the spline sleeve 34 is also formed directly in the connecting end 2a of the right handle 2 by molding.
  • the spline sleeve 34 is provided with internal spline teeth, and the spline shaft 33b on the spring clamping seat can be inserted into the spline sleeve 34 and matched with the spline sleeve 34 by splines, and the spline fitting function and The manner of use is the same as in the third embodiment.
  • Embodiment 8 is a modification of Embodiment 7, which may include all of the structures described above in Embodiment 7.
  • the present embodiment adds an angle restricting mechanism between the two handles, and the angle restricting mechanism functions the same as that of the fourth embodiment.
  • the angle limiting mechanism is also composed of an outer ring gear and an inner ring gear.
  • the outer ring gear and the inner ring gear are provided with cooperating convex teeth and tooth grooves, and the convex teeth include at least one special convex tooth.
  • the sleeve 4 is integrally molded on the right handle 2 by molding, and extends forward (to the left) from the joint end of the right handle, and an internal tooth is integrally formed at the left end of the sleeve 4.
  • the outer ring gear 6 is integrally formed by molding on the left handle 1, and a plurality of convex grooves 62 are uniformly disposed on the outer ring gear 6 along the outer circumference. As shown in Figure 32, these gullets include at least one particular gullet 62a. As shown in FIG.
  • the inner ring gear 7 is uniformly provided with a plurality of convex teeth 72 of the same number as the tooth grooves 62 along the inner circumference, and the convex teeth include at least one special convex tooth 72a, and the special convex teeth 72a can be Inserted into other slots other than the special slot 62a.
  • Fig. 32-35 there are 15 convex teeth and tooth grooves, respectively, wherein three special convex teeth 72a are provided adjacent to each other; in particular, two tooth grooves 62a are provided adjacent to each other.
  • the width of all the convex teeth is the same, but the height of the special convex teeth 72a is higher than the height of the other convex teeth; the width of all the tooth grooves (including the special tooth grooves) is also the same, and both It is larger than the width of the convex teeth, but the depth of the special tooth groove 62a is shallower than the depth of the other tooth grooves.
  • the depth of the tooth groove 62a makes the special convex tooth 72a unable to pass, but other convex teeth can be allowed to pass smoothly.
  • the spline shaft cannot be inserted into the spline sleeve, so that the two handles cannot be closed, and the multifunctional muscle exerciser does not work normally. Therefore, as long as the positions of the special convex teeth 72a and the special tooth grooves 62a are reasonably set such that the angles of the two handles in the free state exceed a certain preset value, the special convex teeth 72a and the special tooth grooves 62a are circumferentially The position of the coincidence can be achieved by limiting the angle of the handle.
  • the relative positions of the outer ring gear 6 and the inner ring gear 7 in the axial direction can also be set in the manner described in the embodiment 4 (Figs. 19a-19c) to achieve the function of protecting the spline shaft and the spline bushing.
  • a retaining ring 41 can be fixed to the left end of the sleeve 4, and the retaining ring 41 is a separate member which is not integrally formed with the sleeve 4 for assembly.
  • the right end of the retaining ring 41 is fixed on the left end of the sleeve 4, and the left end of the retaining ring 41 is sleeved on the outer side of the left handle connecting end 1a, but the inner diameter of the left end of the retaining ring 41 is smaller than the outer diameter of the outer ring gear 6, when the two handles are
  • the connecting end is separated by a distance, the spline shaft is completely separated from the spline sleeve, and the outer ring gear 6 is in contact with the retaining ring 41, so that the connecting ends of the two handles cannot continue to be separated, that is, the outer ring gear 6 constitutes a protrusion. Therefore, the outer ring gear 6 and the retaining ring 41 also constitute a limiting mechanism.
  • This embodiment may also include the insertion positioning mechanism described in Embodiment 3.
  • an annular groove 33d is provided on the cylindrical surface of the guide shaft 33c, and a connection shaft is provided at the connection end of the right handle.
  • a matching hole of 33c is arranged on the hole wall of the guiding hole, and a top bead 34b is arranged in the radial direction.
  • the top bead 34b is in contact with the spring 34a. Under the action of the spring 34a, a part of the spherical surface of the bead 34b can protrude from the inner wall of the guiding hole. Come.
  • the top bead 34b can be The cylindrical surface of the guide shaft 33c slides; and when the spline shaft 33b is fully engaged with the spline sleeve 34, that is, the external spline teeth on the spline shaft 33b and the internal spline teeth of the spline sleeve 34 When the full length is engaged, the top bead 34b just snaps into the annular groove 33d to achieve positioning, that is, the annular groove 33d and the top bead 34b constitute an insertion positioning mechanism.
  • the name of the present invention is a multifunctional muscle exerciser that can be used to exercise the arm and shoulder muscles, it can also be used to exercise the inner thigh muscles and the buttocks muscles if the two handles are used to hold the two handles. Therefore, the scope of the invention should be limited by the structure of the claims, and should not be limited by the manner of use.

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Abstract

一种多功能肌肉锻炼器，包括两个手柄(1，2)，两个手柄(1，2)各包括一个连接端(1a，2a)和一个握持端(1b，2b)。两个手柄(1，2)的连接端(1a，2a)之间连接有扭转弹簧(3)，扭转弹簧(3)是由叠置的多片弹簧钢片(31)构成，多片弹簧钢片(31)的两端分别由紧固件连接。优选地，两个手柄(1，2)均呈U形，两个手柄(1，2)的连接端(1a，2a)同轴设置，两个手柄(1，2)的握持端(1b，2b)相平行但不在同一条直线上。

Description

多功能肌肉锻炼器 技术领域
本发明涉及一种健身器材，特别是涉及一种主要用于锻炼手臂、胸部和肩部肌肉的多功能肌肉锻炼器。
背景技术
目前市场上用于锻炼肌肉的健身器材种类繁多，但基本上可以分为两类，一类是利用器械自身重量来提供阻力；另一类是利用弹簧来提供阻力。现有的利用弹簧来提供阻力的臂力器都是采用普通的钢丝螺旋弹簧，由于螺旋弹簧旋绕比(线径比)的限制，当需要提供较大阻力时，螺旋弹簧的体积会变得较大，从而使健身器材的体积较大或重量较重，既增加了制造成本，又不便于存放和携带。
另外，现有臂力器的功能大都比较单一，难以达到综合锻炼的效果。一些具有多种功能的臂力器，往往是把几种不同的器械简单地组合在一起，不但使用不便，而且也降低了可靠性。
比如，中国实用新型专利CN203663337U公开了一种多功能臂力器，既能当做臂力器用于锻炼臂力，又能当做拉力器用于锻炼胸肌。它包括握柄和第一弹簧，在第一弹簧的两端分别固定有一带有外螺纹的套管，两左右布置的握柄通过螺纹分别可拆卸的设置在用于承受弯矩的第一弹簧的两端并组成臂力器，沿长度方向在两手柄上分别设有若干环形的并带有卡扣结构的第一连接环，将第一弹簧从两握柄上取下后，抽出空套在第一弹簧内部的若干第二弹簧，并将第二弹簧的两端通过环形的第二连接环与两握柄上相对的第一连接环连接使得两握柄与第二弹簧组成拉力器。该专利就采用了螺旋弹簧作为阻力元件，从而也存在体积大、有安全隐患等缺点。另外，该多功能臂力器在变换功能时，需要重新拆装弹簧，给使用造成不便。
又比如，中国实用新型专利CN203220727U公开了一种多功能臂力器，包括中间段弹簧、两侧把手和保护绳套，在两侧把手的顶端连接有螺旋形张角弹簧，所述螺旋形张角弹簧的另一端连接有一个握力器手柄，既可以当臂力器锻炼臂力，也可以用一端把手、弹簧和手柄构成的握力器锻炼握力。虽然该专利设置了保护绳套，使安全性有所改善，但螺旋弹簧所带来的其它缺陷仍然无法克服。并且，该臂力器通过在把手上增加握力器的方式，也会给使用造成不便。
发明内容
本发明要解决的技术问题是提供一种体积小、扭力大、安全性好的多功能肌肉锻炼器。
为了解决上述技术问题，本发明采用如下技术方案：一种多功能肌肉锻炼器，包括两个手柄，两个手柄各包括一个连接端和一个握持端，两个手柄的连接端之间连接有扭转弹簧，所述扭转弹簧是由叠置的多片弹簧钢片构成，所述多片弹簧钢片的两端分别由紧固件连接。
优选地，所述手柄由工程塑料经模塑成型。
优选地，所述两个手柄的连接端上均设有槽口,弹簧钢片的端部被夹持在所述槽口中，并由紧固件固定连接在两个手柄的连接端上。
进一步地，所述手柄由具有内孔的管材构成，所述两个手柄的内孔中各固定一个弹簧固定座，所述槽口设置在弹簧固定座上。
优选地，所述两个手柄均呈U形，两个手柄的连接端同轴设置，两个手柄的握持端并排设置。
更优地，所述扭转弹簧的一端与其中一个手柄的连接端固定连接，另一端固定连接一个弹簧夹持座，另一个手柄的连接端上固定设有一个花键套，所述弹簧夹持座上设有一段花键轴，所述花键轴与所述花键套相配合。
与现有技术相比，本发明具有以下有益效果：
1、本发明采用了由多片弹簧钢片构成的扭转弹簧，具有尺寸小、重量轻、两端便于固定的优点。
2、并且这种扭转弹簧的弹力大。
3、采用两个U形手柄，只要合理地设置两个手柄之间的夹角或者合理地设置两个手柄握持端之间的距离，既可以夹紧，也可以拉伸。把两个手柄之间的夹角调小可以做拉力器，把两个手柄之间的夹角调大可以作为“压力器”或握力器。
4、采用花键轴与花键套相配合的结构，使两个手柄间的夹角可调，不但可以很方便地实现多功能肌肉锻炼器和握力器的功能，而且可以很方便地调节扭力的大小，从而实现多种锻炼形式，用来锻炼不同的肌肉群。
5、整个器械的重量较轻，使用舒适安全；可折叠，方便携带。
附图说明
图1是本发明多功能肌肉锻炼器实施例1的结构示意图。
图2是本发明中扭转弹簧的结构示意图。
图3是本发明中一种弹簧固定座的结构示意图。
图4是图1中A-A处的剖视图。
图5是本发明多功能肌肉锻炼器实施例2的结构示意图。
图6是本发明多功能肌肉锻炼器实施例2的立体结构示意图。
图7是本发明多功能肌肉锻炼器实施例3中所用的一种扭转弹簧组件的示意图。
图8是本发明多功能肌肉锻炼器实施例3的结构示意图。
图9是本发明多功能肌肉锻炼器实施例3的立体结构示意图。
图10是本发明多功能肌肉锻炼器的两个手柄所形成的一种夹角的示意图。
图11是本发明多功能肌肉锻炼器的两个手柄所形成的另一种夹角的示意图。
图12是图8中B处的局部放大图。
图13是本发明多功能肌肉锻炼器实施例4的立体结构示意图。
图14是图13中C处的局部放大图。
图15是本发明多功能肌肉锻炼器实施例4中所用的一种外齿圈的示意图。
图16是本发明多功能肌肉锻炼器实施例4中所用的一种内齿圈的示意图。
图17示出了本发明实施例4中内齿圈与外齿圈在圆周方向上的一种相对位置关系。
图18示出了本发明实施例4中内齿圈与外齿圈在圆周方向上的另一种相对位置关系。
图19a示出了本发明实施例4中内齿圈与外齿圈在轴向上的第一种相对位置关系。
图19b示出了本发明实施例4中内齿圈与外齿圈在轴向上的第二种相对位置关系。
图19c示出了本发明实施例4中内齿圈与外齿圈在轴向上的第三种相对位置关系。
图20是本发明多功能肌肉锻炼器实施例4的另一种立体结构示意图。
图21是本发明多功能肌肉锻炼器实施例5的结构示意图。
图22是本发明多功能肌肉锻炼器实施例5的立体示意图。
图23是本发明多功能肌肉锻炼器实施例6的结构示意图。
图24是本发明多功能肌肉锻炼器实施例6的立体示意图。
图25是本发明多功能肌肉锻炼器实施例7的结构示意图。
图26是扭转弹簧与弹簧夹持座的组合状态示意图。
图27是弹簧夹持座的立体结构示意图。
图28是本发明多功能肌肉锻炼器实施例8的立体示意图。
图29是图28中D处的局部放大图。
图30是本发明多功能肌肉锻炼器实施例8的结构剖视图。
图31是图30中E处的局部放大图。
图32是本发明多功能肌肉锻炼器实施例8中所用的一种外齿圈的示意图。
图33是本发明多功能肌肉锻炼器实施例8中所用的一种内齿圈的示意图。
图34示出了本发明实施例8中内齿圈与外齿圈在圆周方向上的一种相对位置关系。
图35示出了本发明实施例8中内齿圈与外齿圈在圆周方向上的另一种相对位置关系。
附图标记说明：
1、左手柄               1a、连接端                 1b、握持端
1c、凸筋                2、右手柄                  2a、连接端
2b、握持端              3、扭转弹簧                31、弹簧钢片
3a、通孔                32、弹簧固定座             32a、槽口
32b、通孔               32c、凹槽                  32d、固定孔
33、弹簧夹持座          33a、槽口                  33b、花键轴
33c、导向轴             33d、环形槽                34、花键套
34a、弹簧               34b、顶珠                  4、套管
41、挡环                5、衬管                    6、外齿圈
61、凸齿                61a、特别凸齿              62、齿槽
62a、特别齿槽           7、内齿圈                  71、齿槽
71a、特别齿槽           72、凸齿                   72a、特别凸齿
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细说明。这些实施方式仅用于说明本发明，而并非对本发明的限制。
在本发明的描述中，需要说明的是，术语“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解 为对本发明的限制。
此外，在本发明的描述中，除非另有说明，“多个”的含义是指两个或两个以上。
实施例1
如图1所示，本发明一种多功能肌肉锻炼器包括左、右两个手柄1、2，两个手柄1、2各包括一个连接端1a、2a和一个握持端1b、2b，本实施例中的手柄1、2由具有内孔的金属管材制成，比如由钢管或铝合金管制成。其中在两个手柄的连接端1a、2a之间连接有扭转弹簧3，当用双手分别握住两个手柄的握持端1b、2b并向相反的方向转动时，扭转弹簧3可以提供扭转阻力，从而可以锻炼双臂的扭转力。
如图2所示，本发明中的扭转弹簧3是由多片弹簧钢片31上下重叠在一起构成的，这些弹簧钢片31的两端均设有通孔3a,可以通过铆钉或螺栓等紧固件把它们连接在一起。当通过手柄向扭转弹簧3的两端施加扭矩时，扭转弹簧3可以提供较大的弹力，并且体积小、重量轻。
结合参照图1-图3，为了便于扭转弹簧3的两端固定在手柄1、2的内孔中，在扭转弹簧3的两端各设有一个弹簧固定座32，弹簧固定座32上开有槽口32a和垂直于槽口的通孔32b，当弹簧钢片的端部被夹持在所述槽口32a中时，可以将铆钉或螺栓穿过通孔32b和弹簧钢片端部的通孔3a，从而将弹簧钢片固定在弹簧固定座32上。再将弹簧固定座32与手柄的连接端1a、2a固定连接，从而将扭转弹簧3连接在两个手柄的连接端1a、2a之间。比如，可以用铆钉或螺钉穿过弹簧固定座32上的固定孔32d，将弹簧固定座32固定在手柄内，当然也可以采用焊接、粘接等其它公知的方式进行固定。
如图3、图4所示，在本发明的一种优选实施方式中，所述手柄1、2均由圆管构成，所述弹簧固定座32也呈圆柱形并位于手柄的内孔中，圆管的内壁上设有两道凸筋1c，所述弹簧固定座32的柱面上设有与所述凸筋1c相配合的凹槽32c。通过凸筋1c与凹槽32c的配合，可以使弹簧固定座32与手柄1、2的连接更加可靠，同时起到传递扭矩的作用。
继续参照图1，两个手柄的连接端1a、2a的端面相靠拢，中间只留很小的间隙，从而将扭转弹簧3整体上容纳在两个手柄的内孔中，扭转弹簧3除两端与手柄1、2连接外，其余部位不受约束，可以自由地发生扭转变形。优选地，还包括一段套管4套设在两个手柄的连接端1a、2a的外面，套管4可以起到遮挡手柄连接端1a、2a之间的间隙和保护扭转弹簧3的作用，使本发明的多功能肌肉锻炼器使用更安全。套管4可以固定在其中一个手柄的连接端 上。进一步地，在套管4的内壁与手柄连接端的外壁之间还设有衬管5，衬管5由低摩擦系数的材料制成，可以固定在套管4的内壁或手柄连接端的外壁上，衬管5可以避免套管4的内壁与手柄连接端的外壁直接接触，从而降低摩擦。
实施例2
如图5、图6所示，在本发明的实施例2中，两个手柄1、2均呈U形，两个手柄的连接端1a、2a同轴设置，而两个手柄的握持端1b、2b并排设置，即从正面看，如图5所示，两个手柄的握持端1b、2b有一段长度是重叠的，但在自由状态下前后分开一定的距离。从侧面看，如图10所示，两个手柄1、2之间形成一个夹角。本实施例中扭转弹簧3的结构，以及扭转弹簧3与两个手柄的连接关系与实施例1相同。其它结构，比如套管4和衬管5也可以按照与实施例1相同的方式来设置。
两个手柄1、2的长度大致相当，由于两个手柄的握持端1b、2b并排设置，可以用双手握持后，通过推拉的方式，使两个手柄的握持端1b、2b之间的距离进一步增大或缩小，或者说通过人力改变两个手柄1、2之间的夹角，从而使扭转弹簧3产生弹力，达到锻炼双臂推、拉力的目的。
实施例3
如图7-9所示，与实施例2相同的是，本实施例也采用两个U形手柄和叠片式的扭转弹簧，两个手柄也由圆管弯曲而成，但本实施例中扭转弹簧与两个手柄的连接方式与实施例2并不相同。
如图7所示，本实施例中扭转弹簧3的一端固定一个弹簧固定座32，弹簧固定座32与上述两个实施例中的相同；扭转弹簧3的另一端固定一个弹簧夹持座33，象弹簧固定座32那样，弹簧夹持座33上也开有槽口33a，弹簧钢片的一个端部被夹持在所述槽口33a中，并由铆钉或螺栓等紧固件固定在弹簧夹持座33上。弹簧夹持座33上还设有一段花键轴33b，花键轴33b上设有外花键齿。
如图8所示，所述弹簧固定座32固定在左手柄1内，而右手柄2的连接端2a内设有花键套34，花键套34内设有内花键齿，所述弹簧夹持座上的花键轴33b可插入花键套34中并与花键套34通过花键相配合(这种状态在下文中称为两个手柄处于闭合状态)，在使用多功能肌肉锻炼器的过程中，所述花键配合起到传递扭矩的作用。两个手柄内壁上也可以设置两 道凸筋(可参照图4中的1c)，所述弹簧固定座32和花键套34的柱面上也设有与所述凸筋相配合的凹槽。通过该凸筋与凹槽的配合，可以使弹簧固定座32、花键套34与手柄1、2的连接更加可靠，同时起到传递扭矩的作用。
当拉拔左手柄1，使左手柄的连接端1a相对于右手柄2的连接端2a向外(向左)运动时，可以带动扭转弹簧3连同其末端的弹簧夹持座33一起向外运动，使花键轴33b脱离花键套34(这种状态在下文中称为两个手柄处于打开状态)，从而使左手柄1相对于右手柄2可以自由转动。如果将左手柄1相对于右手柄2转动一个角度后，再使花键轴33b重新插入花键套34中，则可以很方便地调节两个手柄握持端1b、2b之间的初始距离，或者说调节两个手柄1、2的初始(在自由状态下的)夹角，比如从图10所示的一个较小的夹角α调节到图11所示的一个较大的夹角β，或者从一个较大的夹角β调节到一个较小的夹角α。
改变两个手柄1、2之间的初始夹角，在使用多功能肌肉锻炼器时，双臂所需要施加的力量大小也会随之改变。因此，本实施例中的多功能肌肉锻炼器可以比较方便地调节扭力的大小。
另外，当两个手柄握持端1b、2b之间的初始距离(或两个手柄1、2之间的初始夹角)比较恰当时，可以用一只手同时握住两个手柄的握持端1b、2b，因此，本实施例中的多功能肌肉锻炼器也可以作握力器使用，从而具有多种功能。
如图7-图9所示，在弹簧夹持座33上，从所述花键轴33b的末端还向前延伸一段导向轴33c，导向轴33c的直径小于花键轴33b的齿根圆直径，花键套34中设有导向轴33c相配合的导向孔。当花键轴33b从花键套34中脱出后，导向轴33c还留在花键套34中；当花键轴33b再重新插入花键套34中时，导向轴33c可以起到导向作用，使花键轴33b能比较容易地插入花键套34中。
如图7、图12所示，在一种更优化的结构中还包括设置在导向轴33c和手柄之间的插入定位机构，在导向轴33c的柱面上设有一道或几道环形槽33d，在手柄的连接端2a内(比如在花键套34上)沿径向设有顶珠34b，顶珠34b与弹簧34a相接触，在弹簧34a的作用下，顶珠34b的部分球面可以从导向孔的内壁突出来。当所述花键轴33b与所述花键套34部分配合时，也就是当花键轴33b上的外花键齿与花键套34的内花键齿只有部分长度相啮合时，所述顶珠34b可沿导向轴33c的柱面滑动；而当所述花键轴33b与所述花键套34完全配合时，也就是当花键轴33b上的外花键齿与花键套34的内花键齿实现全长度相啮合时，所述顶珠34b正好卡入环形槽33d内，实现定位，即上述环形槽33d与顶珠34b构成插入定位机构。 使用者可以凭手感获知顶珠34b是否卡入环形槽33d内，从而判断花键轴33b与花键套34是否完全配合，避免在花键轴33b与花键套34部分配合时使用多功能肌肉锻炼器，而造成花键轴33b或花键套34损坏。
如图8、图9所示，在本实施例中，两个手柄的连接端1a、2a外面也可以设置套管4，套管4的一端固定在其中一个手柄的连接端上，套管4的内壁与另一个手柄连接端的外壁之间也可以设置衬管5。套管4和衬管5也各自具有实施例1中所述的作用，同时，本实施例中的套管4和衬管5还被用于构成两个手柄之间的限位机构。当两个手柄的连接端1a、2a分开一段距离且所述花键轴33b与花键套34完全分离时，该限位机构用于阻止两个手柄的连接端1a、2a继续分离，从而避免两个手柄在使用过程中完全分开，保证本发明多功能肌肉锻炼器的完整性和使用安全性。如图8所示，衬管5固定在右手柄2的连接端2a上，衬管5的外径大于右手柄连接端2a的外径；而套管4的左端固定在左手柄的连接端1a上，套管4的右端延伸到右手柄2的连接端2a的外面，套管4的右端固定有挡环41，挡环41的内径小于衬管5的外径，当两个手柄的连接端分开一段距离时，花键轴33b与花键套34完全分离，此时衬管5的右端面与挡环41相接触，使两个手柄的连接端无法继续分离，即衬管5构成一个凸起部，从而衬管5与套管4端部的挡环41构成了所述限位机构。
实施例4
本实施例是对实施例3的一种改进，它可以包括实施例3上述的全部结构。在实施例3的基础上，本实施例在两个手柄之间增设了角度限制机构，该角度限制机构的作用是，当两个手柄在自由状态下的夹角处于某个范围(比如30～150度)内时，两个手柄在左右方向受挤压时可以从打开状态变为闭合状态，也就是花键轴33b与花键套34(见图8)相啮合的状态；而当两个手柄在自由状态下的夹角超过某个预设值(比如150度)时，即便从左右方向用力向中间挤压两个手柄，两个手柄也无法从打开状态变为闭合状态，即两个手柄的连接端将无法足够靠近，从而所述花键轴33b无法插入花键套34中，此时两个手柄只能相对空转，多功能肌肉锻炼器无法正常使用。
如实施例3中所述，多功能肌肉锻炼器的两个手柄之间的初始夹角是可以调节的。但假如使用者将两个手柄之间的初始夹角调到很大(比如接近180度)，那么在多功能肌肉锻炼器使用过程中，其中的扭转弹簧就可能发生很大的变形，并产生很大的弹力，而这可能造成握持困难而滑脱，或者造成扭转弹簧或其它部件发生损坏，进而给使用者造成危险。因此，本 实施例设置角度限制机构，可以更好地保证多功能肌肉锻炼器和使用者的安全。该角度限制机构由外齿圈和内齿圈构成，外齿圈和内齿圈之间设有互相配合的凸齿和齿槽，且这些凸齿中包括至少一个特别凸齿，这些齿槽中包括至少一个特别齿槽，所述特别凸齿可以插入除特别齿槽之外的其它齿槽中。
如图13、14所示，套管4固定在右手柄2上，套管4的左端固定有内齿圈7，而左手柄1上固定一个外齿圈6，外齿圈6上沿外圆周均匀设置多个凸齿61，如图15所示，这些凸齿中包括至少一个特别凸齿61a。如图16所示，内齿圈7上沿内圆周均匀地设有多个齿槽71，这些齿槽中包括至少一个特别齿槽71a，所述特别凸齿61a可以插入除特别齿槽71a之外的其它齿槽中。内齿圈7与外齿圈6的齿数相同，设为N；花键轴33b与花键套34的齿数也相同，设为n，则N＝n或者N是n的整数倍。
另外，如图13、14所示，内齿圈7可以作为套管4的一部分一体形成在套管4的左端，也可以作为一个独立的构件固定在套管4的左端，在实施例3中所提到的挡环41也可以形成在内齿圈7的内部。
在图15-18中，凸齿和齿槽各有12个，其中特别凸齿61a设有2个，相邻设置；特别齿槽71a也有2个，相邻设置。但显然凸齿和齿槽数量并不限于12个，特别凸齿61a和特别齿槽71a也不限于2个。所有凸齿(包括特别凸齿)的宽度都是相同的，但特别凸齿61a的高度比其它凸齿的高度要高一些；所有齿槽(包括特别齿槽)的宽度也是相同的，并且都大于凸齿的宽度，在配合时两边都留有一定的旷量，以保证外齿圈6和内齿圈7啮合时，在扭转弹簧3的自由状态下花键轴33b可以顺利地和花键套34啮合。但特别齿槽71a的深度要比其它齿槽的深度浅一些，特别齿槽71a的深度使特别凸齿61a无法通过，但可以允许其它凸齿顺利通过。
如图17所示，当特别凸齿61a和特别齿槽71a在圆周方向上的位置不重合时，所有的凸齿都可以从齿槽中通过，从而使两个手柄可以从打开状态变为闭合状态，多功能肌肉锻炼器可以正常工作。如图18所示，只要有一个特别凸齿61a和特别齿槽71a在圆周方向上的位置发生重合，由于特别齿槽71a的深度使特别凸齿61a无法通过，两个手柄的连接端无法靠近，所述花键轴33b无法插入花键套34中，从而使两个手柄无法变为闭合状态，多功能肌肉锻炼器不能正常工作。因此，只要合理地设置特别凸齿61a和特别齿槽71a的位置，使得两个手柄在自由状态下的夹角超过某个预设值时，特别凸齿61a和特别齿槽71a在圆周方向上的位置发生重合，就可以达到限制手柄角度的目的。
如前所述，两个手柄在从打开状态变为闭合状态的过程中，所述花键轴33b与花键套34(见图8)起先只有部分长度开始配合，如果没有限制措施，此时对两个手柄施加扭矩，很可能会造成花键轴33b或花键套34的损坏。为了避免这种情况，上述外齿圈6和内齿圈7在轴向上的相对位置可以按以下方式设置，即当所述花键轴33b与花键套34完全脱离时，外齿圈6和内齿圈7也处于脱开状态(如图19a所示)；当外齿圈6开始进入内齿圈7内时(如图19b所示)，所述凸齿61开始插入齿槽71中，随后花键轴33b与花键套34有部分长度开始啮合，此时如果对两个手柄施加扭矩，由于凸齿61与齿槽71互相限位，两个手柄互相卡死，多功能肌肉锻炼器不能正常工作，从而避免了对花键轴33b或花键套34在啮合长度过短时使用而可能造成的损坏，因此，上述角度限制机构除了具有限制手柄角度的功能外，还具有保护花键轴33b和花键套34的功能；当所述花键轴33b与花键套34完全配合时，外齿圈6也完全进入内齿圈7内(如图19c所示)，此时凸齿61已越过齿槽71并与齿槽71脱离，凸齿61与齿槽71不再互相限位，两个手柄可以相对转动，多功能肌肉锻炼器可以正常工作。
角度限制机构的另一种设置方式如图20所示，套管4仍固定在右手柄2上，但将外齿圈6和内齿圈7的位置互换一下，即外齿圈6固定在套管4的左端，而内齿圈7则固定在左手柄1上，外齿圈6上的凸齿以及内齿圈7上的齿槽仍同上设置，这种方式也可以实现角度限制机构的功能。但这种方式的优点是可以减小内齿圈7的外径，从而减小整个多功能肌肉锻炼器的体积。
实施例5
如图21、22所示，本实施例中的多功能肌肉锻炼器包括左、右两个手柄1、2，两个手柄1、2各包括一个连接端1a、2a和一个握持端1b、2b，在两个手柄的连接端1a、2a之间连接有扭转弹簧3，扭转弹簧3的结构与实施例1相同。与实施例1不同的是，本实施例中的两个手柄1、2均由工程塑料制成，可以通过模塑成型的方式，直接在两个手柄的连接端1a、2a上形成用于夹持扭转弹簧3的槽口32a，因此，本实施例并不需要设置独立的弹簧固定座。夹持在槽口32a中的扭转弹簧3的两端也可以用铆钉或螺钉固定在两个手柄上。
实施例6
如图23、24所示，在本发明的实施例6中，两个手柄1、2的形状与实施例2相同，均呈U形，但两个手柄1、2是由工程塑料通过模塑直接成型。本实施例中扭转弹簧3的结构， 以及扭转弹簧3与两个手柄的连接关系与实施例5相同。
实施例7
如图25-27所示，与实施例6相同的是，本实施例也采用两个U形手柄和叠片式的扭转弹簧，两个手柄也由工程塑料通过模塑直接成型。但本实施例中扭转弹簧与两个手柄的连接方式与实施例6并不相同。
如图25所示，扭转弹簧3的一端直接固定左手柄的连接端1a内；扭转弹簧3的另一端固定一个弹簧夹持座33，弹簧夹持座33上开有槽口33a(见图27)，扭转弹簧3的另一端被夹持在所述槽口33a中，并由铆钉或螺栓等紧固件固定在弹簧夹持座33上。
如图27所示，弹簧夹持座33的结构与实施例3中的相同，其上也设有一段花键轴33b，花键轴33b上设有外花键齿。从所述花键轴33b的末端还向前延伸一段导向轴33c，导向轴33c的直径小于花键轴33b的齿根圆直径。导向轴33c的作用与实施例3相同。
如图25所示，在右手柄2的连接端2a内设有花键套34，花键套34也是通过模塑成型的方式直接形成在右手柄2的连接端2a内。花键套34内设有内花键齿，所述弹簧夹持座上的花键轴33b可插入花键套34中并与花键套34通过花键相配合，这种花键配合的作用及使用方式与实施例3相同。
实施例8
如图28-30所示，实施例8是对实施例7的一种改进，它可以包括实施例7上述的全部结构。在实施例7的基础上，本实施例在两个手柄之间增设了角度限制机构，该角度限制机构的作用与实施例4相同。该角度限制机构也由外齿圈和内齿圈构成，外齿圈和内齿圈之间设有互相配合的凸齿和齿槽，且这些凸齿中包括至少一个特别凸齿，这些齿槽中包括至少一个特别齿槽，所述特别凸齿可以插入除特别齿槽之外的其它齿槽中。
如图28、29所示，套管4通过模塑的方式一体成型在右手柄2上，并从右手柄的连接端向前(向左)延伸，在套管4的左端一体成型有内齿圈7，而左手柄1上通过模塑的方式一体成型一个外齿圈6，外齿圈6上沿外圆周均匀设置多个凸槽62。如图32所示，这些齿槽中包括至少一个特别齿槽62a。如图33所示，内齿圈7上沿内圆周均匀地设有与齿槽62数量相同的多个凸齿72，这些凸齿中包括至少一个特别凸齿72a，所述特别凸齿72a可以插入除特别齿槽62a之外的其它齿槽中。
在图32-35中，凸齿和齿槽各有15个，其中特别凸齿72a设有3个，相邻设置；特别齿槽62a设有2个，相邻设置。所有凸齿(包括特别凸齿)的宽度都是相同的，但特别凸齿72a的高度比其它凸齿的高度要高一些；所有齿槽(包括特别齿槽)的宽度也是相同的，并且都大于凸齿的宽度，但特别齿槽62a的深度要比其它齿槽的深度浅一些，特别齿槽62a的深度使特别凸齿72a无法通过，但可以允许其它凸齿顺利通过。
如图34所示，当特别凸齿72a和特别齿槽62a在圆周方向上的位置不重合时，所有的凸齿都可以从齿槽中通过，从而使两个手柄可以从打开状态变为闭合状态，多功能肌肉锻炼器可以正常工作。如图35所示，只要有一个特别凸齿72a和特别齿槽62a在圆周方向上的位置发生重合，由于特别齿槽62a的深度使特别凸齿72a无法通过，两个手柄的连接端无法靠近，所述花键轴无法插入花键套中，从而使两个手柄无法变为闭合状态，多功能肌肉锻炼器不能正常工作。因此，只要合理地设置特别凸齿72a和特别齿槽62a的位置，使得两个手柄在自由状态下的夹角超过某个预设值时，特别凸齿72a和特别齿槽62a在圆周方向上的位置发生重合，就可以达到限制手柄角度的目的。
外齿圈6和内齿圈7在轴向上的相对位置也可以按照实施例4(图19a-19c)所述的方式进行设置，以达到保护花键轴和花键套的功能。
另外，如图30所示，在套管4的左端还可以固定一个挡环41，出于装配的需要，挡环41是一个独立的构件，它与套管4并不是一体成型的。挡环41的右端固定在套管4的左端上，挡环41的左端套在左手柄连接端1a的外面，但挡环41左端的内径小于外齿圈6的外径，当两个手柄的连接端分开一段距离时，花键轴与花键套完全分离，此时外齿圈6与挡环41相接触，使两个手柄的连接端无法继续分离，即外齿圈6构成一个凸起部，从而外齿圈6与挡环41也构成了一种限位机构。该限位机构的作用与实施例3中所述的相同。
本实施例也可以包括实施例3所述的插入定位机构，如图30、31所示，在导向轴33c的柱面上设有一道环形槽33d，在右手柄的连接端设有与导向轴33c相配合的导向孔，在该导向孔的孔壁上沿径向设有顶珠34b，顶珠34b与弹簧34a相接触，在弹簧34a的作用下，顶珠34b的部分球面可以从导向孔的内壁突出来。当花键轴33b与花键套34部分配合时，也就是当花键轴33b上的外花键齿与花键套34的内花键齿只有部分长度相啮合时，所述顶珠34b可沿导向轴33c的柱面滑动；而当所述花键轴33b与所述花键套34完全配合时，也就是当花键轴33b上的外花键齿与花键套34的内花键齿实现全长度相啮合时，所述顶珠34b正好卡入环形槽33d内，实现定位，即上述环形槽33d与顶珠34b构成插入定位机构。
虽然本发明的名称为多功能肌肉锻炼器，可以用来锻炼臂部和肩部肌肉，但如果用双腿来夹持两个手柄，也可以用来锻炼大腿内侧肌肉和臀部肌肉。因此，本发明的保护范围应由权利要求记载的结构来限定，而不应受到使用方式的限制。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (10)

  1. 一种多功能肌肉锻炼器，包括两个手柄(1，2)，两个手柄(1，2)各包括一个连接端(1a，2a)和一个握持端(1b，2b)，其特征是，两个手柄(1，2)的连接端(1a，2a)之间连接有扭转弹簧(3)，所述扭转弹簧(3)是由叠置的多片弹簧钢片(31)构成，所述多片弹簧钢片(31)的两端分别由紧固件连接。
  2. 根据权利要求1所述的多功能肌肉锻炼器，其特征是，所述手柄(1，2)由工程塑料经模塑成型。
  3. 根据权利要求1所述的多功能肌肉锻炼器，其特征是，所述两个手柄(1，2)的连接端(1a，2a)上均设有槽口(32a，33a),弹簧钢片(31)的端部被夹持在所述槽口(32a，33a)中，并由紧固件固定连接在两个手柄(1，2)的连接端(1a，2a)上。
  4. 根据权利要求3所述的多功能肌肉锻炼器，其特征是，所述手柄(1，2)由具有内孔的管材构成，所述两个手柄(1，2)的内孔中各固定一个弹簧固定座(32)，所述槽口(32a)设置在弹簧固定座(32)上。
  5. 根据权利要求1-3任一项所述的多功能肌肉锻炼器，其特征是，所述两个手柄(1，2)均呈U形，两个手柄(1，2)的连接端(1a，2a)同轴设置，两个手柄(1，2)的握持端(1b，2b)并排设置。
  6. 根据权利要求5所述的多功能肌肉锻炼器，其特征是，所述扭转弹簧(3)的一端与其中一个手柄(1)的连接端(1a)固定连接，另一端固定连接一个弹簧夹持座(33)，另一个手柄(2)的连接端(2a)内设有花键套(34)，所述弹簧夹持座(33)上设有一段花键轴(33b)，所述花键轴(33b)与所述花键套(34)相配合。
  7. 根据权利要求6所述的多功能肌肉锻炼器，其特征是，从所述花键轴(33b)的末端向前延伸一段导向轴(33c)，所述导向轴(33c)的直径小于花键轴(33b)的齿根圆直径。
  8. 根据权利要求7所述的多功能肌肉锻炼器，其特征是，所述导向轴(33c)上设有至少一道环形槽(33d)，所述手柄的连接端(2a)内沿径向设有顶珠(34b)，当所述花键轴(33b)与所述花键套(34)完全配合时，所述顶珠(34b)与环形槽(33d)相配合。
  9. 根据权利要求6所述的多功能肌肉锻炼器，其特征是，所述两个手柄(1，2)之间设有限位机构，所述限位机构包括固定在其中一个手柄连接端上的凸起部和固定在另一个手柄连接端上的挡环，当两个手柄(1，2)的连接端(1a，2a)分开一段距离且所述花键 轴(33b)与花键套(34)完全分离时，所述凸起部与挡环相接触，阻止两个手柄(1，2)的连接端(1a，2a)继续分离。
  10. 根据权利要求6所述的多功能肌肉锻炼器，其特征是，所述两个手柄(1，2)之间设有角度限制机构，所述角度限制机构包括固定在其中一个手柄连接端上的外齿圈和固定在另一个手柄连接端上的内齿圈，外齿圈和内齿圈之间设有互相配合的凸齿和齿槽，且这些凸齿中包括至少一个特别凸齿，这些齿槽中包括至少一个特别齿槽，所述特别凸齿可以插入除特别齿槽之外的其它齿槽中，当两个手柄(1，2)的夹角超过一预设值时，所述特别凸齿与特别齿槽的位置相对，两个手柄(1，2)的连接端(1a，2a)无法足够靠近，从而所述花键轴(33b)无法插入所述花键套(34)中。
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